Thermodynamic Modelling of Hightemperature Synthesis of the Titan and Chrome Carbides on an Alloyed Steel for Electron-Beam Melting of Modifying Coatings

Abstract

Adiabatic temperatures of interaction and equilibrium phase compositions in the 300–2673 K temperature range are determined by thermodynamic calculations made for a interaction of titan and chrome oxides with carbon on a surface of the alloyed steel 321 at non vacuum electron-beam melting. Synthesized phases are found to be thermodynamically stable refractory compounds – oxides, carbides, nitrides Cr, Ti, Fe and, stable in contact with the solid-state metallic base.